Expansion-gear for rolls



(No Model!) I J. N. WISE.

v EXPANSION GEAR r011 ROLLS.

4293314 Q Patented June a, 1390.

Km" mm' passing between them.

UNITE STATES JOSEPH N. WISE, OFNORWAIIK, OHIO.

EXPANSION- GEARFOR ROLLS.

SPECIFICATION formingpart of Letters Application filed December 10, 1889 To aZZ whom it may concern.-

Be it known that I, JOSEPH N. WISE, a ci.tizen of the United States,residiu g at Norwalk, in the county of Huron and State of Ohio, have invented a new and useful Improvement in Expansion-Gear for Rolls, ofrwhich the following is a specification.

My invention has relation to improvements in expansion-gear for use-on Wood-planers, wringers, and all other machines wherein a system of feed-rolls is employed; and it consists in certain details of construction and arrangements of the parts composing the same, as and for the purposes as will be hereinafter more fully explained, and form the subjectmatter of the annexed claim. 7 p

The object of this invention is to provide a simple and effective .means whereby the mechanism employed to communicate movement from the lower roll to the upper roll in rolling-mills, wringers, planers, &c., is supported and held in proper position relatively to said rolls, so that while they will at all times be in positive connection, yet said rolls will be permitted to adapt themselves to articles In carrying out my invention I proceed as follows, reference being had to the accompanyin g drawings, forming part hereof, where Figures 1 and 2are views inside elevation of a portion of two feed-rolls having expansion-gear arranged according to my invention; and Fig. 3 is a plan, and Fig. -i an end elevation, of the same.

In Figs. 1 and 3 sprocket-wheels and chainconnection are employed between the shaft of lower roll and intermediate shaft, while in Figs. 2 and at gear-connection is used. Otherwise the parts shown in the several figures of the drawings are the same.

The letters A B indicate the rolls, and a b the'shafts thereof. In Figs. 1 and 3, upon the driving-shaft a is keyed a sprocket-wheel O, and upon the shaft 1) is keyed a gear-wheel D.

E is a short intermediate shaft situated slightly above and to one side of the top shaft 1), and so held by four brackets, two of which, as at 1 1, extend from the lower shaft a, and the other two 2 2 extending from the top shaft 1). Upon this shaft E is keyed a sprocket-wheel O, that is connected by chain F with the sprocket-wheel C on shaft a, and a Patent No. 429,331, dated June '3, 1890.

. Serial No. 333,234. (No model.)

The two brackets 1 1, that extend from the.

intermediate shaft to the shaft of the lower roll, support said intermediate shaft in its elevated position, while the brackets 2 2 hold the intermediate shaft iniits proper position relative "to the shaft of the top roll.

Instead of the sprocket-wheels and chain for connecting the drive-shaft with the top shaft, as shown in Figs. 1 and 3, pulleys with band, belt, or cable may be substituted therefor; or, as shown in Figs. 2 and 4, cog-wheels may be placed on the drive-shaft ct and intermediate shaft E, as at H and I, instead of the sprocket-wheels O 0 shown in Figs. 1

and 3, which cog-wheels are connected by an idler J on a shaft j, that has its bearings in the brackets 1 1, whereby movement from the drive-shaft will be .imparted to the intermediate shaft, and through it to the shaft of the top roll, the same as were the sprocket-Wheels and chain employed.

Having thus fully described my invention, what I claim as new therein, and desire to'secore by Letters Patent of the United States, is as follows, to wit:

The combination, with the shaft a of the stationary roll A and shaft b of movable roll 13, of the short intermediate shaft E, gearwheel D on shaft b, gear-wheel D on intermediate shaft E, brackets 1 1, extending from the extremities ofintermediate shaft E to the shaft a, brackets 2 2, extending from intermediate shaft E to shaft 12, adjacent the gear- Wheels D D, and means, substantially such as described, for communicating direct movement from shaft a to intermediate shaft'E, for the purposes specified. In testimony that I claim the foregoing as my own I have hereto aflixed my signature in presence of two witnesses.

JOSEPH N. WISE.

Witnesses:

S. F. NELSON, O. W. WILLIAMS. 

